ZrW_2O_8 powders were prepared by sol-gel method with PVP as the additive.The effect of PVP on the morphology was studied and negative thermal expansion property of ZrW_2O_8 powders was also investigated.The precursor of ZrW_2O_8 was analysized by thermogravimetric and differential scanning calorimetry(TG-DSC).The structure and morphology of the resulting powder were characterized by powder X-ray diffraction(XRD)and scanning electron microscopy(SEM)respectively.The results show that the resulting powder is ...
SUN Xiu-juan1,2,CHENG Xiao-nong2,YANG Juan2,LIU Qin-qin2,XU Dong2(1Testing and Analysis Center,Jiangsu University,Zhenjiang 212013,Jiangsu,China;2School of Materials Science and Engineering,Jiangsu University,Zhenjiang 212013,Jiangsu,China)在一定的温度范?
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